FIRST DOWN. All progress in a football game is measured in yards. The offensive team tries to get as much yardage as it can to try and move closer to the opponent's end zone. Each time the offense gets the ball, it has four downs, or chances, in which to gain 10 yards.
The largest eagle species in the world is the Pithecophaga jefferyi or Philippine eagle. This species of eagle is on the critically endangered list due to the rapid decline in habitat, which is the tropical rainforest. Keep Learning.
The Bateleur is found in the tree and brush savanna throughout Africa, south of the Sahara. The Bald Eagle has a wingspan of up to eight feet and can weigh up to 15 pounds. The Golden Eagle has a wingspan averaging 7-8 feet. The Steller's Sea Eagle has the longest wingspan, reaching up to 9 feet.